Ionic compounds
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Ionic Compounds. Unit 6: Nomenclature Mrs. Callender. Lesson Essential Questions:. How do I write a formula for an ionic compound?. How do I name an ionic compound?. Ex. BaO. Writing Names of Binary Ionic Compounds. Ox ide. Barium.

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Ionic Compounds

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Ionic compounds

Ionic Compounds

Unit 6: Nomenclature

Mrs. Callender


How do i name an ionic compound

Lesson Essential Questions:

How do I write a formula for an ionic compound?

How do I name an ionic compound?


Writing names of binary ionic compounds

Ex. BaO

Writing Names of Binary Ionic Compounds

Oxide

Barium

1. Write the Name of the first element (cation) as is.

You know it is a Binary Ionic Compound because it contains two (Bi) elements and one element is a metal and the other is a nonmetal.

2. Change the ending of the second element (anion) to –ide.


Writing names of binary ionic compounds1

Ex. MgI2

Writing Names of Binary Ionic Compounds

Iodide

Magnesium

1. Write the Name of the first element (cation) as is.

2. Change the ending of the second element (anion) to –ide.


Writing names of ionic compounds with polyatomic ions

Ex. MgIO3

Writing Names of Ionic Compounds with Polyatomic Ions

Iodate

Magnesium

1. Write the Name of the first element (cation) as is.

You know it is a Polyatomic Ionic Compound because it contains more than two elements.

2. Write the name of the anion.


Writing names of ionic compounds with polyatomic ions1

Ex. NH4IO3

Writing Names of Ionic Compounds with Polyatomic Ions

Iodate

Ammonium

1. Write the Name of the first element (cation) as is.

You know it is a Polyatomic Ionic Compound because it contains more than two elements.

2. Write the name of the anion.


Writing ionic formulas

Writing Ionic Formulas

Ex. Sodium Iodide

Write the formula for the anion and cation including the charges.

2. Check to see if the charges are balanced.

+1-1= Net charge of zero which means it is balanced.

Na+1

I-1


Writing ionic formulas1

Writing Ionic Formulas

Ex. Barium Chloride

Write the formula for the anion and cation including the charges.

2. Check to see if the charges are balanced.

+2-1= Net charge of +1 which means it is NOT balanced and will need a subscript.

Ba+2

Cl-1

BaCl2

Not Balanced


What does the subscript mean

What does the subscript mean?

In review: remember Barium has 2 valence e-

and chlorine has 7 valence e-

Since Barium has two bonding sites it can have two anions bonded to it becoming….

BaCl2

Ba

Cl

Cl


Writing ionic formulas2

Writing Ionic Formulas

Another way of writing a formula is by

crisscrossing the charges.

BaCl2

Ba

+2

Cl

-1

1

2


Writing ionic formulas3

Writing Ionic Formulas

Ex. Barium Nitrate

Write the formula for the anion and cation including the charges.

2. Check to see if the charges are balanced.

+2-1= Net charge of +1 which means it is NOT balanced and will need a subscript and parenthesis.

Ba+2

NO3-1

Ba(NO3)2

2

Not Balanced


Writing ionic formulas4

Writing Ionic Formulas

Ex. Ammonium Sulfate

Write the formula for the anion and cation including the charges.

2. Check to see if the charges are balanced.

+1-2= Net charge of -1 which means it is NOT balanced and will need a subscript and parenthesis.

SO4-2

NH4+1

(NH4)2SO4

2

Not Balanced


Writing ionic formulas5

Writing Ionic Formulas

Ex. Ammonium Sulfate

Write the formula for the anion and cation including the charges.

2. Check to see if the charges are balanced.

+1-2= Net charge of -1 which means it is NOT balanced and will need a subscript and parenthesis.

SO4-2

NH4+1

(NH4)2SO4

2

Not Balanced


Writing ionic formulas6

Writing Ionic Formulas

Ex. Magnesium Carbonate

Write the formula for the anion and cation including the charges.

2. Check to see if the charges are balanced.

MgCO3

CO3-2

Mg+2

They are Balanced


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